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Docking: Recording dockspace parent window so pruning doesn't zealously lose the location of nodes. (#2109)

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This commit is contained in:
omar 2019-07-29 15:40:51 -07:00
parent cb2de62bb1
commit 07c52a25ff
1 changed files with 22 additions and 1 deletions
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23
imgui.cpp
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@ -11074,6 +11074,7 @@ struct ImGuiDockNodeSettings
{
ImGuiID ID;
ImGuiID ParentNodeID;
ImGuiID ParentWindowID;
ImGuiID SelectedWindowID;
signed char SplitAxis;
char Depth;
@ -11081,7 +11082,7 @@ struct ImGuiDockNodeSettings
ImVec2ih Pos;
ImVec2ih Size;
ImVec2ih SizeRef;
ImGuiDockNodeSettings() { ID = ParentNodeID = SelectedWindowID = 0; SplitAxis = ImGuiAxis_None; Depth = 0; Flags = ImGuiDockNodeFlags_None; }
ImGuiDockNodeSettings() { ID = ParentNodeID = ParentWindowID = SelectedWindowID = 0; SplitAxis = ImGuiAxis_None; Depth = 0; Flags = ImGuiDockNodeFlags_None; }
};
struct ImGuiDockContext
@ -11380,6 +11381,18 @@ static void ImGui::DockContextPruneUnusedSettingsNodes(ImGuiContext* ctx)
pool.GetOrAddByKey(settings->ParentNodeID)->CountChildNodes++;
}
// Count reference to dock ids from dockspaces
// We track the 'auto-DockNode <- manual-Window <- manual-DockSpace' in order to avoid 'auto-DockNode' being ditched by DockContextPruneUnusedSettingsNodes()
for (int settings_n = 0; settings_n < dc->SettingsNodes.Size; settings_n++)
{
ImGuiDockNodeSettings* settings = &dc->SettingsNodes[settings_n];
if (settings->ParentWindowID != 0)
if (ImGuiWindowSettings* window_settings = FindWindowSettings(settings->ParentWindowID))
if (window_settings->DockId)
if (ImGuiDockContextPruneNodeData* data = pool.GetByKey(window_settings->DockId))
data->CountChildNodes++;
}
// Count reference to dock ids from window settings
for (int settings_n = 0; settings_n < g.SettingsWindows.Size; settings_n++)
if (ImGuiID dock_id = g.SettingsWindows[settings_n].DockId)
@ -14166,6 +14179,7 @@ static void ImGui::DockSettingsHandler_ReadLine(ImGuiContext* ctx, ImGuiSettings
else return;
if (sscanf(line, "ID=0x%08X%n", &node.ID, &r) == 1) { line += r; } else return;
if (sscanf(line, " Parent=0x%08X%n", &node.ParentNodeID, &r) == 1) { line += r; if (node.ParentNodeID == 0) return; }
if (sscanf(line, " Window=0x%08X%n", &node.ParentWindowID, &r) ==1) { line += r; if (node.ParentWindowID == 0) return; }
if (node.ParentNodeID == 0)
{
if (sscanf(line, " Pos=%i,%i%n", &x, &y, &r) == 2) { line += r; node.Pos = ImVec2ih((short)x, (short)y); } else return;
@ -14196,6 +14210,7 @@ static void DockSettingsHandler_DockNodeToSettings(ImGuiDockContext* dc, ImGuiDo
IM_ASSERT(depth < (1 << (sizeof(node_settings.Depth) << 3)));
node_settings.ID = node->ID;
node_settings.ParentNodeID = node->ParentNode ? node->ParentNode->ID : 0;
node_settings.ParentWindowID = (node->IsDockSpace() && node->HostWindow && node->HostWindow->ParentWindow) ? node->HostWindow->ParentWindow->ID : 0;
node_settings.SelectedWindowID = node->SelectedTabID;
node_settings.SplitAxis = node->IsSplitNode() ? (char)node->SplitAxis : ImGuiAxis_None;
node_settings.Depth = (char)depth;
@ -14239,9 +14254,15 @@ static void ImGui::DockSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettings
buf->appendf("%*s%s%*s", node_settings->Depth * 2, "", (node_settings->Flags & ImGuiDockNodeFlags_DockSpace) ? "DockSpace" : "DockNode ", (max_depth - node_settings->Depth) * 2, ""); // Text align nodes to facilitate looking at .ini file
buf->appendf(" ID=0x%08X", node_settings->ID);
if (node_settings->ParentNodeID)
{
buf->appendf(" Parent=0x%08X SizeRef=%d,%d", node_settings->ParentNodeID, node_settings->SizeRef.x, node_settings->SizeRef.y);
}
else
{
if (node_settings->ParentWindowID)
buf->appendf(" Window=0x%08X", node_settings->ParentWindowID);
buf->appendf(" Pos=%d,%d Size=%d,%d", node_settings->Pos.x, node_settings->Pos.y, node_settings->Size.x, node_settings->Size.y);
}
if (node_settings->SplitAxis != ImGuiAxis_None)
buf->appendf(" Split=%c", (node_settings->SplitAxis == ImGuiAxis_X) ? 'X' : 'Y');
if (node_settings->Flags & ImGuiDockNodeFlags_NoResize)